Jagquard-machine for looms



(N0 Modem 2 SheetsSheet 1 S. SHELDON.

JAGQUARD MACHINE FOR LooMs." I No. 600,807. Patented Mar. 15, 1898.

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S. SHELDON..

JAGQUARD MACHINE FOR LOOMS. No. 600,807. Patented Mar. 15,1898.

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SPECIFICATION forming part of Letters Patent No. 600,807, dated March 15, 1898. Application filed January 23, 1895. Renewed July 7, 1897. Serial No. 643,717. (No model.)

To all whom it may concern:

Be it known that I, SAMUEL SHELDON, a citizen of the United States, residing at Paterson, in the county of Passaic and State of New J ersey, have invented certain new and useful Improvements in J acquard-Machines for Looms; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters of reference marked thereon, which form a part of this specification.

My invention relates to a new and useful improvement in jacquard-n1achines, and is especially adapted to be used in connection with the rise-and-fall jacquard-machine, and has for its object. greater simplicity, cheapness, and durability, as well as to increase the speed, thereby enabling the machine to run above one hundred and fifteen picks per minute, and it also reduces the 10st motion and overcomes the constant jarring of the harness-cord, thereby preventing the cord from being torn or tangled up.

With these ends in view my invention consists of the peculiar features and combination of parts'more fully -described hereinafter, and pointed out in the clauses of the claim.

This invention is best understood in connection with the accompanying drawings, in which like letters of reference indicate corresponding parts in each of the several figures where they occur.

Figure 1 is a front elevation'of an ordinary loom in connection Withmy improvements attached to the jacquard-machine, parts of the loom being broken away to better show the main shaft in connection with the sprocket wheel and chain to impart motion to the jacquard-machine. Fig. 2 is an enlarged front view of my improved jacquard machine, omitting the lever containing the roller or cylinder supporting the pattern. Fig. 3 is an end section on the line cc, looking in the direction of the arrow, of Fig. 2. Fig. 4 is an enlarged cross-section of one of the gearwheels, showing the construction of the slot.

In said drawings, or represents the main frame of an ordinary loom,which may be constructed in any suitable manner, and having a main driving-shaft b, on which is secured a fast and loose pulley c and (1, connected by proper belt connection to the main drivingshaft, which is not shown on the drawings. On this main shaft 12 is permanently secured a sprocket wheel 6, having a chain f engagin g with a corresponding spocket-wheel g on the main driving-shaft h of the jacquard-machine h.

2' indicates the cross-beams to which the jacquard-machine is secured.

j represents the roller or cylinder on which a series of cards 7c, representing the pattern to be woven, rest and is operated in the wellknown manner to cause the separate hooks to be raised and lowered in accordance with the said pattern.

The frame Z of the jacquard-machine his provided with studs m and n, on which are secured gear-wheels m and'n, meshing into each other. The gear-wheel m also meshes with 'a gear-Wheel 0 on the main driving-shaft h of the jacquard-machine.

On the gear-wheels m and n are formed integral therewith raised projections m and m each having an opening m or n for the reception of the shaft. 0 and p for connecting the vertical arms q and r, secured to the ordinary hook-plates s and 25, operating the hooks. Said vertical arm (1 is secured at its upper end to the hook-plate s, and the vertical arm 0 is secured at its lower end to the hook-plate t, as shown in Fig. 3. These shafts 0' and 19 can be adjusted in said openings m and n to suit the operator and can be so arranged as to increase the speed of the rise and fall of the hook-plates, as will be understood upon referring to the accompanying,

drawings, especially to Fig. 3.

To the hub u of the gear-wheel n is secured an eccentric a, connected by the arm or lever 1; to the lever 10, having the roller or cylinderj secured thereto. Said lever w is fulcrumed at w on the frame l of the jacquard machine. The said arm or lever 41 is so constructed as to allow for adjustment by the nut 12, as fully shown in Fig. 3 of the drawings. The object of this arm or lever 1;, connected to the eccentrichub a of the gear-wheel n, is to give said lever to a backward-and-forward motion, so that the catch to will come into engagement with the wheel 10 so that the patterns are moved by each revolution of said main driving-shaft.

The weight of the wheels m n being placed upon studs upon the frame, the operator is enabled to get a higher speed from his inachine and also to run more picks to the minu're than heretofore.

I do not wish to be understood as limiting myself to the exact construction shown and described, as various changes may be made without departing from the spirit of my invention.

Having now described my invention, what I claim as new, and desire to secure by Letters Patent of the United States, is-

1. The frame of the jacquard-machine, provided with studs on each end, and the intermeshing wheels mounted upon said studs, and provided on their outer sides with the raised slotted projections, combined with the shortshafts adjustably secured in said projections, the hook-plates and the rods connected to said short shafts for operating the hook-plates; the said intermeshin g wheels receiving motion from the main driving-shaft of the jacquard, substantially as shown.

2. The driving-shaft h provided with a wheel at each end, the frame l provided with the two studs m, n at each end, and the Wheels m or placed upon the studs and provided with the raised slotted projections on their outer sides, combined with the short shaftsp, secured in the slotted projections, the rods (1, r, the hook-boards, the lever carrying the patterns, and means for rocking the lever, sub stantially as set forth.

3. The frame of a jacquard-machine, provided with studs, interrneshing wheels mounted upon the studs, combined with short shafts adj ustably connected to the outer sides of the wheels, the hook-plates, and the rods connected to said short shafts for operating the hook-plates, the said interrneshing wheels receiving motion from the main driving-shaft of the jacquard, substantially as described.

In testimony that I claim the invention set forth above I have hereunto setmy hand this 19th day of January, 1895.

SAMUEL SHELDON.

Witnesses:

OHAs. H. FABRISKIE, J os. KAY. 

